Patent application number | Description | Published |
20120182278 | Methods and Apparatus for Estimating Light Adaptation Levels of Persons Viewing Displays - Methods and apparatus for estimating adaptation of the human visual system take into account the distribution of light detectors (rods and cones) in the human eye to weight contributions to adaptation from displayed content and ambient lighting. The estimated adaptation may be applied to control factors such as contrast and saturation of displayed content. | 07-19-2012 |
20120256941 | Local Definition of Global Image Transformations - A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided. | 10-11-2012 |
20130156334 | Video Codecs With Integrated Gamut Management - Image decoders encoders and transcoders incorporate gamut transformations. The gamut transformations alter tone, color or other characteristics of image data. The gamut transformations may comprise interpolation, extrapolation, direct mapping of pixel values and/or modification of an expansion function. Gamut transformations may be applied to generate image output (video or still) adapted for display on a target display. | 06-20-2013 |
20130328907 | Method and Apparatus for Image Data Transformation - Image data is transformed for display on a target display. A sigmoidal transfer function provides a free parameter controlling min-tone contrast. The transfer function may be dynamically adjusted to accommodate changing ambient lighting conditions. The transformation may be selected so as to automatically adapt image data for display on a target display in a way that substantially preserves creative intent embodied in the image data. The image data may be video data. | 12-12-2013 |
20140002478 | Method and Apparatus for Image Data Transformation | 01-02-2014 |
20140002737 | Generating Alternative Versions of Image Content Using Histograms | 01-02-2014 |
20140160143 | Method of Adapting a Source Image Content to a Target Display - Source image content is adapted to a target display. Target image content associated with the target display is provided. A histogram is computed for the target image content. A prominent feature present in the target histogram is determined. A histogram is computed for the source image content. The source content histogram is manipulated to reflect the determined target histogram prominent feature(s). Adapted source image content is generated based on the manipulated source histograms(s). Another prominent feature present in the target histogram is determined. The source histogram is further manipulated to reflect the other prominent determined target histogram features. Further adapted source image content is generated based on the further manipulated source histogram if the adapted source image content has insufficient image quality and perceptual color characteristics. | 06-12-2014 |
20140333660 | MAPPING FOR DISPLAY EMULATION BASED ON IMAGE CHARACTERISTICS - An emulator yields modified image data that predicts the appearance of image content on a target display. The emulator generates modified image data based in part on the image content. The emulator may perform a transformation in which one or more parameters representative of features such as black level and/or white level of the target display are functions of image statistics for the image content. | 11-13-2014 |
20150054807 | Methods and Apparatus for Estimating Light Adaptation Levels of Persons Viewing Displays - Methods and apparatus for estimating adaptation of the human visual system take into account the distribution of light detectors (rods and cones) in the human eye to weight contributions to adaptation from displayed content and ambient lighting. The estimated adaptation may be applied to control factors such as contrast and saturation of displayed content. | 02-26-2015 |
20150084978 | LOCAL DEFINITION OF GLOBAL IMAGE TRANSFORMATIONS - A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided. | 03-26-2015 |
20150085925 | Video Codecs with Integrated Gamut Management - Image decoders encoders and transcoders incorporate gamut transformations. The gamut transformations alter tone, color or other characteristics of image data. The gamut transformations may comprise interpolation, extrapolation, direct mapping of pixel values and/or modification of an expansion function. Gamut transformations may be applied to generate image output (video or still) adapted for display on a target display. | 03-26-2015 |